package leetCode;

public class T344 {
    public static void main(String[] args) {

    }
}
class SolutionT344 {
    public void reverseString(char[] s) {
        int i=0;
        int j=s.length-1;
        while (i<j){
            char temp=s[i];
            s[i]=s[j];
            s[j]=temp;
        }
    }
}